On Tue, 2010-10-26 at 20:35 -0700, Nishanth Aravamudan wrote:
> iommu_table_setparms_lpar needs either the phb or the subbusnumber
> (not both), pass the phb to make it similar to iommu_table_setparms.
>
> Note: In cases where a caller was passing bus->number previously to
> iommu_table_setparms_lpar() rather than phb->bus->number, this can lead
> to a different value in tbl->it_busno. The only example of this was the
> removed pci_dma_dev_setup_pSeriesLP(), removed in "ppc/iommu: remove
> unneeded pci_dma_dev_setup_pSeriesLP".
>
> Signed-off-by: Milton Miller <milt...@bga.com>
> Signed-off-by: Nishanth Aravamudan <n...@us.ibm.com>
> ---
> arch/powerpc/platforms/pseries/iommu.c | 8 +++-----
> 1 files changed, 3 insertions(+), 5 deletions(-)
>
> diff --git a/arch/powerpc/platforms/pseries/iommu.c
> b/arch/powerpc/platforms/pseries/iommu.c
> index 9d564b9..45c6865 100644
> --- a/arch/powerpc/platforms/pseries/iommu.c
> +++ b/arch/powerpc/platforms/pseries/iommu.c
> @@ -323,14 +323,13 @@ static void iommu_table_setparms(struct pci_controller
> *phb,
> static void iommu_table_setparms_lpar(struct pci_controller *phb,
> struct device_node *dn,
> struct iommu_table *tbl,
> - const void *dma_window,
> - int bussubno)
> + const void *dma_window)
> {
> unsigned long offset, size;
>
> - tbl->it_busno = bussubno;
> of_parse_dma_window(dn, dma_window, &tbl->it_index, &offset, &size);
>
> + tbl->it_busno = phb->bus->number;
> tbl->it_base = 0;
> tbl->it_blocksize = 16;
> tbl->it_type = TCE_PCI;
> @@ -534,8 +533,7 @@ static void pci_dma_dev_setup_pSeriesLP(struct pci_dev
> *dev)
> if (!pci->iommu_table) {
> tbl = kzalloc_node(sizeof(struct iommu_table), GFP_KERNEL,
> pci->phb->node);
> - iommu_table_setparms_lpar(pci->phb, pdn, tbl, dma_window,
> - pci->phb->bus->number);
> + iommu_table_setparms_lpar(pci->phb, pdn, tbl, dma_window);
> pci->iommu_table = iommu_init_table(tbl, pci->phb->node);
> pr_debug(" created table: %p\n", pci->iommu_table);
> } else {
There's another caller :-) I've fixed that up locally and will push with
the fix.
Cheers,
Ben.
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